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- Path: sparky!uunet!spool.mu.edu!olivea!sgigate!odin!twilight!zola!ipecac!steev
- From: steev@ipecac.esd.sgi.com (Motorin' Flarey Henderson)
- Newsgroups: comp.sys.sgi.hardware
- Subject: Re: Which machine can use these simms
- Message-ID: <vet8gl8@zola.esd.sgi.com>
- Date: 28 Jan 93 18:19:12 GMT
- References: <1993Jan28.000538.6282@noose.ecn.purdue.edu>
- Sender: news@zola.esd.sgi.com (Net News)
- Organization: Silicon Graphics, Inc. Mountain View, CA
- Lines: 40
-
- In <1993Jan28.000538.6282@noose.ecn.purdue.edu> chienhua@simplex.ecn.purdue.edu (Chien-Hua Hsiao) writes:
-
-
- >Please help me to identify which machine can use following simms.
-
- >+---------------------------------+
- >| +-+ +-+ +-+ +-+ +-+ +-+ +-+ +-+ |
- >| | | | | | | | | | | | | | | | | |
- >| | | | | | | | | | | | | | | | | |
- >| +-+ +-+ +-+ +-+ +-+ +-+ +-+ +-+ |
- >||||||||||||||||| |||||||||||||||||
- >+----------------^----------------+
- > | |
- > 32 pins 32 pins
-
- >These simms have 8 chips on it. The code on the chip is AAA1M300J-08
- > NMBS 9130
- >Are the simms 1Mx8-80NS.
-
- They don't sound familiar to me, at least for ESD's machines. The 4D/20
- and 4D/25 use a 30 pin (100 mil spacing) simm in a 9 bit wide configuration,
- same as many PC clones. 1Mx9-100ns was the most common size.
- The 4D/30, 4D/35, and Indigo R3K used a double high simm with a pinout
- that looks like the above drawing (64 pins, 50mil spacing), but with two
- rows of 9 DRAMs (18 DRAMs total), and a custom gate array on the back. These
- were 9 bits wide, two way interleave simms that came in 2M, 4M, and 8M
- sizes (the 4M had 10 of the 18 DRAMS stuffed). These were custom simms
- that were not found on any other computer. The Indigo R4K and the
- Indigo^2 use a 72 pin (50 mil spacing) 36 bit wide simm, as can be
- found in certain IBM PS/2 models.
-
- >Thanks in advance. Please e-mail me.
-
-
- >Chien-Hua Hsiao
- >chienhua@ecn.purdue.edu
-
- --
- steve valin steev@sgi.com
- It's like deja vu all over again...
-